we're thinking that pressure needs to be brought on china. goods made in germany, sold by that company to the chinese company that thinks it will keep it in china, but in fact it is going to iran. all it a country of tr concern. we're thinking maybe it is time that china is called out on that. china needs to be pressured to stop a local in the system internationally that is being created to keep iran from outfitting its centrifuge program. that effort over time has had tremendous success. with more and more sanctions, it is been more successful. more purchases stopped, more interdiction's, more trouble for iran to make progress. >> in terms of u.s. non- proliferation programs, david is emphasizing some of the holes that exist, particularly in controls and lack of enforcement of existing sanctions legislation. what is your assessment of non- proliferation programs? >> when you hear discussions on sanctions, these are the things we tried to do to cut off supply. there are more things that could be done to enforce things, have better training in